Extruded seatback frame with adjustable track system for a wheelchair



FIG. 1 is a perspective view of an extruded seatback frame with adjustable track system for a wheelchair showing my new design, the broken lines are for illustrative purposes only and form no part of the claimed design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side view with the left side being a mirror image thereof; and,

FIG. 5 is a top plan view with the bottom being a mirror image thereof. 

The ornamental design for an extruded seatback frame with adjustable track system for a wheelchair, as shown and described. 